docs: add hardware-in-the-loop rig reference

2026-08-20T17:47:27Z

Document the ci and hfp HIL rigs in enough detail to reproduce one: bill of materials with photos, BIOS/IOMMU and vfio-pci passthrough on the Proxmox host, the Renesas uPD720201 firmware install, the guest software and permissions, the one-hub-per-root-port USB topology rule and the per-box split of probe and DUT hubs, how CI drives the rigs, and the operational gotchas. The attached-board table is generated from test/hil/tinyusb.json and test/hil/hfp.json by tools/gen_doc.py into docs/reference/hil_boards.md, which the page includes. Sphinx excludes that partial so it is not also built as an orphan document. Also exclude docs/superpowers/ from the Sphinx build: it holds internal plans, specs and handoffs rather than published documentation, and since nothing references them from a toctree each emitted "document isn't included in any toctree" -- 26 warnings in total, so build_doc.py -W could never pass. It now does.

add sponsor section

2026-06-02T08:24:31Z

resize logo, add white background

2023-11-01T04:20:18Z

update readme, add sponsor section

2023-11-01T03:40:20Z

fix trailing space and new line

2023-03-17T09:12:49Z

temporarily disable codespell

add back info to readme, use stack.svg

2021-08-03T17:25:02Z

docs: add local copy of stackup image, with added backround

2021-07-30T11:46:30Z

Signed-off-by: perigoso

docs: add new svg logo

2021-07-30T11:46:29Z